JPH1146453A - Simple charging device for portable telephone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a portable telephone usable emergently by charging electricity from a dry cells or the like to a battery pack, by connecting together the output and input of a constant voltage circuit between a power supply terminal of a connector plug suited to a multi-purpose connecting connector and a snap terminal integrally connected with an electrode of a rectangular type laminated 9 V battery. SOLUTION: A lead wire 3 is connected to the output of a constant voltage circuit 5 in a housing case4,and+electrode7and-electrode 8 are connected to the input of the constant voltage circuit 5. For charging, an output connector plug 1 is inserted to a multi-purpose connector of the portable telephone, and the electrodes of a rectangular laminated 9 V dry cell are integrated with + electrode 7 and-electrode 8. For portable telephone battery packs, the voltage of 3.6 V or 4.8 V is mainly used. However voltage of the rectangular laminated 9 V dry battery is 9 V and this is sufficient for charging the battery pack. By building a constant voltage circuit 5 in a charging circuit, an overcharging to the battery pack of portable telephone can be prevented and the portable battery can be fully charged by using the laminated 9 V dry cell.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has an object to charge a battery of a mobile phone in an emergency evacuation from a readily available square laminated 9V dry battery when the battery of the mobile phone is exhausted, and to use the mobile phone. And It also aims to use the mobile phone by charging the battery of the mobile phone by taking power from the cigarette lighter socket of the car by using the included car adapter.

[0002]

2. Description of the Related Art Conventionally, a mobile phone generally uses a battery pack housed in a telephone body, and when a battery is exhausted, it is generally charged from an AC power supply through a charger. Battery packs were expensive to own, and the chargers were large and unsuitable for carrying.

[0003]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems by charging a battery pack from a readily available commercially available dry cell or a car battery, thereby urgently evacuating a mobile phone. It is intended to be usable.

[0004]

SUMMARY OF THE INVENTION A constant voltage circuit is connected between a power supply terminal of a connector plug which is compatible with a versatile connection connector on the bottom of a mobile phone and a snap terminal which is combined with an electrode of a square laminated 9V battery. By connecting input and output,
The present invention is characterized in that a battery pack of a mobile phone is charged from a commercially available square laminated 9V dry battery or a battery of an automobile to compensate for the consumption of the battery of the battery pack.

[0005]

1A is a front view of an embodiment of the present invention, B is a side view, C shows a housed state of a constant voltage circuit, lead wires and snap terminals, and D shows a snap terminal in a bottom view. ing. Is an output connector plug that fits multi-purpose connectors on mobile phones. Is a connector plug case, which is a molded plastic product that can be designed very small. Is a lead wire (A) using a two-core cord, and one side is connected to the output connector plug in the case. Is a constant voltage circuit, is a snap terminal, (+) ▲ 10 of the electrode of the square laminated 9V dry battery.
The (+) electrode (A) is connected to the ▼, and the dry cell electrode (-)
11 is connected to the (-) electrode (A). Is an indicator light indicating the charging state, which is installed on the same substrate as the constant voltage circuit.
Is a storage case (A), (+) electrode (A), (-) electrode (A) of a lead wire, a constant voltage circuit, and a snap terminal.
Can be stored in a very small plastic case. The lead wire is connected to the output of the constant voltage circuit in the storage case (A). The (+) electrode (A) and the (-) electrode (A) are connected to the input of the constant voltage circuit. The indicator lamp 6 can be recognized from the outside by providing a small hole in the storage case 4. FIG. 2 shows the outer shape of the square laminated 9V dry battery. For charging, insert the output connector plug into the multi-purpose connector of the mobile phone, and connect the electrode of the square stacked 9V dry battery to the (+) electrode (A),
(-) It starts by combining with the electrode (A). A battery pack of a mobile phone mainly uses a voltage of 3.6 V or 4.8 V. The voltage of a square stacked 9 V dry battery is 9 V, which is a voltage value sufficient to charge the battery pack.
FIG. 4 shows a constant voltage circuit. Square type 9V input
When a dry battery is connected, a new battery naturally has a voltage of 9 V, so that the output of the constant voltage IC “IC1” becomes the set output of 4.8 V. The volume “VR1” is for fine adjustment of the output voltage. The transistor "Q1" is a constant voltage IC "IC1" from the zener voltage of the constant voltage diode.
Is higher, the base current flows to turn ON, and the green light emitting diode “LED1” is turned on. Next, when the battery pack of the mobile phone is connected to the output of this circuit,
When the voltage of the battery pack is in the discharged state and the voltage value is low, the charging current starts to flow.
, A potential difference occurs at both ends. Comparator IC [IC
2 ", this potential difference is detected to know that the battery is being charged, the transistor" Q2 "is turned on, and the red light emitting diode" LED2 "is turned on. As the charging proceeds and the capacity of the square stacked 9V dry battery decreases, the voltage decreases and the output of the constant voltage IC [IC1] also decreases, and the transistor "Q1" is turned off to turn off the green light emitting diode "LED1". Turns off. When the charging of the battery pack of the mobile phone is completed, the potential difference of R “10” also decreases, the output of the comparator IC [IC2] becomes LOW, the transistor “Q2” is turned off, and the red light emitting diode “ “LED2” turns off. That is, in the present constant voltage circuit, the green light emitting diode “LED1” lights up when the capacity of the square stacked 9V dry battery is available, and the red light emitting diode “LED2” while charging the battery pack of the mobile phone.
Lights up. By incorporating a constant voltage circuit in the charging circuit, the battery pack of the mobile phone can be prevented from being overcharged, and the battery pack of the mobile phone is almost fully charged by continuously using square stacked 9V dry batteries. Can be charged up to the level. As described above, both the connector plug and the storage case (A) are small, and they are connected by flexible lead wires. Therefore, it is easy to carry and use the mobile phone with the batteries in the pocket. Is also possible. FIG. 3 shows the shape of an apparatus used as an accessory of the charger of claim 1 for charging a battery pack of a mobile phone from a battery of an automobile. A is a front view, B is a side view, C is a cross-sectional view of the storage case, showing a state in which a voltage drop circuit is installed, and D is a top view showing snap terminals.
{Circle around (12)} is a storage case (B) in which a square laminated 9V
The voltage drop circuit (13) shown in FIG. 5 is connected to the (+) electrode (B) (14) (-) electrode (B) (15) having the same polarity as the snap terminal of the dry battery, and the lead wire ( B) A plastic molded product in which (16) is drawn out, and (17) is a lead plug (B) (16) drawn in by an automobile adapter plug for connection. To charge the battery, insert the adapter plug (17) into the cigarette lighter socket of the car, combine the snap terminals of the storage case (B) (12) with the snap terminals of the storage case (A) of the simple charger, and connect the output connector The plug can be inserted into the jack of the versatile connector of the mobile phone. The voltage drop circuit (13) is for lowering the voltage of the vehicle battery to the voltage of the square laminated 9V dry battery. The car battery is 12V, about 3V higher than the 9V voltage of the square stacked 9V battery, and a voltage drop of about 3V regardless of the current by the series circuit of the diode. By connecting such an auxiliary device to the simple charging device, the dry cell type charging device can be used also as a vehicle-mounted mobile phone charger.

[0006]

The present invention is compact and lightweight and is easy to carry, and at the same time, can be easily recharged in any place, regardless of the location of the car, and is free from the fear of running out of the battery of the portable telephone.

[Brief description of the drawings]

FIG. 1 shows the shape of a charging device.

FIG. 2 shows the shape of a square stacked 9V dry battery.

FIG. 3 shows the shape of accessories of the charging device.

FIG. 4 shows a circuit diagram of a constant voltage circuit.

FIG. 5 shows a circuit diagram of a voltage drop circuit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Output connector plug 2 Connector plug case 3 Lead wire (A) 4 Storage case (A) 5 Constant voltage circuit 6 Indicator light 7 + Electrode (A) 8-Electrode (A) 9 Square type 9V dry battery 10 Battery (+) ) Electrode 11 Battery (-) electrode 12 Storage case (B) 13 Voltage effect circuit 14 (+) electrode (B) 15 (-) electrode (B) 16 Lead wire (B) 17 Adapter plug

Claims (2)

[Claims] 1. A lead wire is connected to a connector plug compatible with a connector of a mobile phone and stored in a plug case.
Connect the other end of the lead wire from the plug case to the output of the constant voltage circuit. The input of the constant voltage circuit is a commercially available square laminated 9V
Connect to the snap terminal that is combined with the electrode of the dry battery, store the constant voltage circuit and the snap terminal in the storage case,
A simple charging device for mobile phones that is charged from V dry cells. 2. The same snap terminal and voltage drop circuit as the rectangular stacked 9V dry battery to be combined with the snap terminal of the charging device according to claim 1. Connect to the adapter plug to be inserted into the lighter socket. This is a mobile phone charging device that can be charged from a car battery.